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This narrative review describes genomic characteristic, serotyping, immunogenicity, and vaccine development of capsular polysaccharide (CPS). CPS is a primary virulence factor of . The genomic characteristics of CPS, including the role of biosynthetic gene and genetic variation within (capsule polysaccharide) locus which may lead to serotype replacement are still being investigated. One hundred unique serotypes of have been identified through various methods of serotyping using phenotypic and genotypic approach. The advantages and limitations of each method are various, emphasizing the need for accurate and comprehensive serotyping for effective disease surveillance and vaccine targeting. In addition, we elaborate the critical role of CPS in vaccine development by providing an overview of immunogenicity, ongoing research of pneumococcal vaccines, and the impact on disease burden.
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http://dx.doi.org/10.7774/cevr.2024.13.2.91 | DOI Listing |
Vaccine
September 2025
Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
Background: Among pregnant and postpartum women, decision-making for receiving the COVID-19 vaccine is influenced by vaccine safety concerns, misconceptions, shifting vaccine policies, and exclusion in the initial vaccine rollout. This caused confusion and vaccine hesitancy among many groups including pregnant and postpartum women.
Objective: The objective of this study was to understand the multilevel factors that influence vaccine decision-making among pregnant and postpartum women in Pakistan, which is crucial for improving vaccine demand among the vulnerable group-pregnant and postpartum women.
J Infect Chemother
September 2025
Department of Pediatrics, Saku Central Hospital Advanced Care Center, Nagano, Japan.
Background: Influenza remains a major public health issue, leading to millions of severe cases and many deaths annually. Although educational and childcare institutions are key transmission points for the spread of the virus in communities, few studies have comprehensively examined the vaccination rates and their determinants in these settings.
Methods: We conducted a nationwide web-based survey to assess influenza knowledge, perceptions, and determinants of vaccine hesitancy based on the 5C model among childcare and educational professionals in Japan.
Int J Infect Dis
September 2025
Pfizer Vaccines, Cambridge, United States.
Background: Tick-borne encephalitis (TBE) is a vaccine-preventable disease. While many European countries conduct TBE surveillance, resulting incidence estimates do not distinguish between vaccinated and unvaccinated populations. To understand TBE risk to unvaccinated individuals, we assessed incidence among unvaccinated populations in Europe.
View Article and Find Full Text PDFRespir Med Res
August 2025
Cystic Fibrosis Center Service de Pneumologie Pôle des Voies Respiratoires, Hôpital Larrey CHU de Toulouse, Toulouse, France.
Background: Little is known about the characteristics of adults with bronchiectasis in France.
Methods: A descriptive cross-sectional study was conducted to describe the characteristics of adults (≥18 years) with clinically-significant bronchiectasis, diagnosed on a combination of respiratory symptoms and CT scan findings, and followed in 18 participating centers. Data on, etiology, lung function, symptoms, microbiology, treatments and quality of life were collected.
Vet Microbiol
September 2025
College of Animal Science and Technology/Laboratory of Functional Microbiology and Animal Health, Henan University of Science and Technology, Luoyang 471023, PR China; Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, Henan University of Science and Techno
Bovine Viral Diarrhea Virus (BVDV) is a major pathogen associated with calf diarrhea and reproductive disorders in cattle. This study evaluated the immune-protective potential of a subunit vaccine based on the capsid C protein of the BVDV HNL-1 strain. In mice model, the C protein subunit vaccine exhibits a favorable safety and elicits robust immune-protective efficacy comparable to commercial inactivated vaccines.
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